cn.trinea.android.common.util

Class ImageUtils

java.lang.Object

cn.trinea.android.common.util.ImageUtils

public class ImageUtils
extends java.lang.Object

ImageUtils

convert between Bitmap, byte array, Drawable
• bitmapToByte(Bitmap)
• bitmapToDrawable(Bitmap)
• byteToBitmap(byte[])
• byteToDrawable(byte[])
• drawableToBitmap(Drawable)
• drawableToByte(Drawable)

get image
• getInputStreamFromUrl(String, int)
• getBitmapFromUrl(String, int)
• getDrawableFromUrl(String, int)

scale image
• scaleImageTo(Bitmap, int, int)
• scaleImage(Bitmap, float, float)

Author:

Trinea 2012-6-27

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	bitmapToByte(Bitmap b) convert Bitmap to byte array
static Drawable	bitmapToDrawable(Bitmap b) convert Bitmap to Drawable
static Bitmap	byteToBitmap(byte[] b) convert byte array to Bitmap
static Drawable	byteToDrawable(byte[] b) convert byte array to Drawable
static Bitmap	drawableToBitmap(Drawable d) convert Drawable to Bitmap
static byte[]	drawableToByte(Drawable d) convert Drawable to byte array
static Bitmap	getBitmapFromUrl(java.lang.String imageUrl, int readTimeOut) get Bitmap by imageUrl
static Bitmap	getBitmapFromUrl(java.lang.String imageUrl, int readTimeOut, java.util.Map<java.lang.String,java.lang.String> requestProperties) get Bitmap by imageUrl
static Drawable	getDrawableFromUrl(java.lang.String imageUrl, int readTimeOutMillis) get drawable by imageUrl
static Drawable	getDrawableFromUrl(java.lang.String imageUrl, int readTimeOutMillis, java.util.Map<java.lang.String,java.lang.String> requestProperties) get drawable by imageUrl
static java.io.InputStream	getInputStreamFromUrl(java.lang.String imageUrl, int readTimeOutMillis) get input stream from network by imageurl, you need to close inputStream yourself
static java.io.InputStream	getInputStreamFromUrl(java.lang.String imageUrl, int readTimeOutMillis, java.util.Map<java.lang.String,java.lang.String> requestProperties) get input stream from network by imageurl, you need to close inputStream yourself
static Bitmap	scaleImage(Bitmap org, float scaleWidth, float scaleHeight) scale image
static Bitmap	scaleImageTo(Bitmap org, int newWidth, int newHeight) scale image

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

bitmapToByte

public static byte[] bitmapToByte(Bitmap b)

convert Bitmap to byte array

Parameters:

b -

Returns:

byteToBitmap

public static Bitmap byteToBitmap(byte[] b)

convert byte array to Bitmap

Parameters:

b -

Returns:

drawableToBitmap

public static Bitmap drawableToBitmap(Drawable d)

convert Drawable to Bitmap

Parameters:

d -

Returns:

bitmapToDrawable

public static Drawable bitmapToDrawable(Bitmap b)

convert Bitmap to Drawable

Parameters:

b -

Returns:

drawableToByte

public static byte[] drawableToByte(Drawable d)

convert Drawable to byte array

Parameters:

d -

Returns:

byteToDrawable

public static Drawable byteToDrawable(byte[] b)

convert byte array to Drawable

Parameters:

b -

Returns:

getInputStreamFromUrl

public static java.io.InputStream getInputStreamFromUrl(java.lang.String imageUrl,
                                        int readTimeOutMillis)

get input stream from network by imageurl, you need to close inputStream yourself

Parameters:

imageUrl -

readTimeOutMillis -

Returns:

See Also:

ImageUtils#getInputStreamFromUrl(String, int, boolean)

getInputStreamFromUrl

public static java.io.InputStream getInputStreamFromUrl(java.lang.String imageUrl,
                                        int readTimeOutMillis,
                                        java.util.Map<java.lang.String,java.lang.String> requestProperties)

get input stream from network by imageurl, you need to close inputStream yourself

Parameters:

imageUrl -

readTimeOutMillis - read time out, if less than 0, not set, in mills

requestProperties - http request properties

Returns:

Throws:

java.net.MalformedURLException

java.io.IOException

getDrawableFromUrl

public static Drawable getDrawableFromUrl(java.lang.String imageUrl,
                          int readTimeOutMillis)

get drawable by imageUrl

Parameters:

imageUrl -

readTimeOutMillis -

Returns:

See Also:

ImageUtils#getDrawableFromUrl(String, int, boolean)

getDrawableFromUrl

public static Drawable getDrawableFromUrl(java.lang.String imageUrl,
                          int readTimeOutMillis,
                          java.util.Map<java.lang.String,java.lang.String> requestProperties)

get drawable by imageUrl

Parameters:

imageUrl -

readTimeOutMillis - read time out, if less than 0, not set, in mills

requestProperties - http request properties

Returns:

getBitmapFromUrl

public static Bitmap getBitmapFromUrl(java.lang.String imageUrl,
                      int readTimeOut)

get Bitmap by imageUrl

Parameters:

imageUrl -

readTimeOut -

Returns:

See Also:

ImageUtils#getBitmapFromUrl(String, int, boolean)

getBitmapFromUrl

public static Bitmap getBitmapFromUrl(java.lang.String imageUrl,
                      int readTimeOut,
                      java.util.Map<java.lang.String,java.lang.String> requestProperties)

get Bitmap by imageUrl

Parameters:

imageUrl -

requestProperties - http request properties

Returns:

scaleImageTo

public static Bitmap scaleImageTo(Bitmap org,
                  int newWidth,
                  int newHeight)

scale image

Parameters:

org -

newWidth -

newHeight -

Returns:

scaleImage

public static Bitmap scaleImage(Bitmap org,
                float scaleWidth,
                float scaleHeight)

scale image

Parameters:

org -

scaleWidth - sacle of width

scaleHeight - scale of height

Returns: